ls /proc

转载时请标明文章原始出处和作者信息, 作者: lostsnow.http://www.lsproc.com/blog/auto_resize_images/
resizeimg.js

window.onload = function() {

for (var index = 0; index < document.images.length; index++) {

var widthRestriction = 400;
var heightRestriction = 400;
var rate = document.images[index].width / document.images[index].height;

[...]